摘要
针对现有高频海态雷达均为探测不同距离海域而专门设计 ,功能单一、通用性差的特点 ,提出了应用软件无线电技术开发新一代高频地波雷达接收机的思想 ,即在一通用硬件平台上 ,尽量通过软件方式来实现不同距离海域探测。结合高频地波雷达的波形体制和当前器件发展水平 ,提出了基于 VXI总线、“一次混频 ,高中频采样”的多通道数字接收机结构 ,详细介绍了其中部分关键技术 ,包括模拟前端、A/ D带通采样、数字下变频等的器件选型以及参数设计等。实践表明 ,发展新的软件化高频地波雷达的理论和技术条件均已成熟 ,它所具有的开放性和灵活性 ,能更好地满足 2 1世纪海洋环境动力学参数研究的需要。
A conception for developing a new HF sea state remote sensing radar is presented based on the software radio. As an effective ocean environment radio sounding instrument, one new software HF surface wave radar receiver is discussed about its system architecture, component selection, parameter design and performances. The multi channel receiver based on VXI bus adopts the structure of one analog mixing, high IF bandpass sampling and digital down converter. Based on the above hardware platform, its function can be changed by software. Results demonstrate that the theory and the technique are mature for developing the new software HF ground wave radar nowadays, and its openness and flexibility can satisfy the demands of ocean environment dynamics research in the 21st century.
出处
《数据采集与处理》
CSCD
2004年第4期470-474,共5页
Journal of Data Acquisition and Processing
基金
国家"8 63"高技术研究发展计划 (2 0 0 1 AA63 1 0 5 0 )资助项目
国家教育部科学技术研究基金 (0 1 1 1 4)资助项目。
